draper



(Model) G.O.DRAPER. SELF THREADING LOOM SHUTTLE.

No. 591,370 Y Patented Oct. 5,-1897.

6 .M I George Oflraper; dam/O. zays.

" NiTED; STATES PATENT OFFICE.

GEORGE O. DRAPER, OF HOPEDALE, MASSACHUSETTS, ASSIGNOR TO GEO. DRAPER dz SONS, OF SAME PLACE.

SELF-TH READING 'LOOM-SHUTTLE.

SPECIFICATION forming part of Letters Fatent No. 591,370, dated October 5, 1897. Application filed January 11, 1896.' serial No. 575,093. (Model J- To all whom it may concern:

Be it known that I, GEORGE O. DRAPER, of I-Iopedale, county of Worcester, State of Massachusetts, have invented an Improvement in Self-Threading Loom-Shuttles, of which the following description, in'connection with the accompanying drawings, is a specification, like letters and figures on the drawings representing like parts.

This invention has for its object the production of a simple and cheap self-threading shuttle for looms, whereby as the shuttle is thrown across the warps and back again the filling-thread is automatically guided into the open eye in the side of the shuttle, whence it is delivered in the subsequent travel of the shuttle.

Figure 1 is a perspective view of a selfend of the shuttle a concavity a is made,

communicating with a transverse slotb in the side of the shuttle, forming the threadeye. Above the said eye the material of the shuttle-body is rearwardly and downwardly inclined at b, to the more readily guide the filling-thread to the eye in the act of threading.

The front wall a of the slot or opening a is partially cut away to leave a longitudinal wall a forming one side of the thread-receiving opening near the point of the bobbin or filling-carrier B. The opposite side of said opening is almost closed by a pin 0, depending from the head d of a metallic stud at nearly to the bottom of the thread-receiving opening in front of and slightly to one side of the point of the filling-carrier, the stud, as clearly shown in Fig. 3, being eccentrically located in the concavity a.

A countersunk hole e is bored in the shuttlebody at the bottom of the concavity a and at one side of the longitudinal center of the shuttle to receive the enlarged foot or base (1 of the said stud, which latter is provided with a threaded hole to engage a retaining-screw 8, (see dotted lines, Fig. 2,) inserted through the hole 6 in the shuttle-body.

The stud (1 acts as a post or pin around which the thread is led to the side eye b, be ing guided thereto by the mushroom or umbrella shaped top d of the stud, around the periphery of which the thread passes and between it and the concavity a. 1

As shown in Figs. 1 and 4 and by dotted lines, Fig. 3, the head cl is slabbed off at d to fit against the transverse wall a, extending part way across the shuttle, and a steadying-pin (i secured to the head, is adapted to enter a suitable hole 3 in the shuttle at the rear side of the side eye b, preventing turning of the stud d and also forminga metallic side for the eye I).

The pin 0 depends from the straight side cl of the head d and is curved inward toward the longitudinal center of the shuttle, as best shown in Fig. 4:, so that it serves as a guide to direct the thread beneath it and into the space between it and the side a as the thread unwinds from the point of the filling-carrier.

After the thread has passed beneath it the pin 0 acts to retain the thread in the receiving-opening, whence it passes around the stud d and beneath its head (1. This position of the thread is brought about by the first throw of the shuttle,'and on the return throw the mushroom-like head d guides the thread between it and the inclined wall 6 into the side eye I), from which it is subsequently delivered. The construction herein described is very simple and cheap and threads the shuttle automatically in a rapid and efiective manner. Having described my invention, what I claim as new, and desire to secure by Letters Patent, is-

1. A self-threading shuttle having an open side eye, a thread-receiving opening in the front end wall of the bobbin-receiving slot, a stud in advance of said opening having a laterally-extended head slabbed off at its rear side to fit against said end wall, a downturned pin thereon curved inward toward the longiside of and nearly closing the thread-receivin g opening, through which the thread passes to and around the stud, and a steadying-pin secured to the head and entering the shuttle at the rear wall of the side eye, substantially as described.

2. A self-threading shuttle having an open side eye, a concavity in the top of its delivery end, and a transverse wall having a threadreceiving opening, an eccentrieally-located internally-threaded stud adjacent thereto,

having a laterally-extended head, convexed on its under side and slabbed off at its rear side, to fit against the transverse wall, and

a retaining-screw to enter the internallythreaded stud from the bottom of the shuttle,

a free passage for the thread being provided on three sides of the stud between the under side of the head and the concavity, to guide the thread to the side eye, the shuttle being rearwardly and downwardly inclined above the latter, substantially as described.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

GEORGE O. DRAPER. 

